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H. W. STORK.

DUMFING SCOW.

APPucATmN man AuG.2l.1919.

1,319,977, Patented 0@t.28,1919.

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INVENTOR Aff/PMA/v n( fro/iw,

ATTORNEY H. W. STORK.

DUMPING SCOW.

APPLICATION Flu-:D AuG.21.1919.

1,319,977".- Patented Oct. 28,1919.

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INVENTOR ,V5/PMA /v [44 (Sra/m; BY f ATTORNE H. W. STORK.

DUMPING SCUW.

APPLICATION FILED AuG.2I. me.

Patented 0015.28, 191.9.

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'@Q ATTORNEY UNITED sTATEs PATENT oEEioE.

HERMAN W. STORK, OF BROOKLYN, NEW YORK.

DUMPING-SCOW.

Application led August 21, 1919.

To all whom t may Concern:

Be it known that I, HERMAN W. SToRK, a citizen of the United States, and a. resident of the lborough of Brooklyn, county of Kings, city and State of New York, have invented certain new and useful Improvements in Dumping-Scows, of which the following is a specification.

My improvements relate to marine vessels of the scow type used for conveying ashes, garbage, and other refuse to dumping locations, and which are usually towed thereto, going with the tide. The trap or loottom dumping scows now used for the purpose are not reliable because they sometimes fail to open, or the refuse is so closely packed therein that it fails to discharge, in either case necessitating a return tow to port, and another dumping excursion with a succeeding tide. This involves serious loss of time and labor, etc., as well as being otherwise objectionable for various and obvious reasons.

The main purpose of my invention is to obviate these difficulties by automatically and positively dumping the scow load by Ia reversal thereof substantially as hereinafter set forth,-the invention consisting in the specific combination and arrangement of parts described and claimecl,-and a distinctive featureJ being the construction of a duplex scow, with independent twin side pockets or holds lpivotally attached to a common keelson plate or partition and provided with air compartments so positioned that when the lower portions of said independent holds are. unlocked from the keelson partition the twin holds will automatically reverse themselves, turning upon their pivotal connections with said keelson partition,

and thereby positively emptying themselves and dumping their loads effectively and eX- peditiously. Incidentally my invention includes in conjunction therewith, several mechanical appliances for controlling said twin holds, and returning them to their normal positions as related to the keelson partition after the dumping operation.

In the accompanying drawings,

Figure 1, is a top view of my duplex dumping scow, in normal closed condition;

Fig. 2, is an end elevation thereof partly in section;

Fig. 3, is ay transverse vertical section, taken upon plane of line 3 3 Fig. 1, showino the twin holds inverted;

Fig. 4, is a longitudinal sectional elevation Specification of Letters Patent.

Patented Oct. 28, 1919.

serial No. 318,870.

taken upon general plane. of line 4-1l, Fig. 2, showing the keelson partition `broken away in part;

Fig. 5, is a detail view upon a larger scale showing the control mechanism;

Fig. 6, is a view taken upon plane of line 6 6, Fig. 5;

Fig. 7 is Ia detail view, upon a still larger scale, of the twin hold closure gearing, etc.

Fig. 8, isy a detail view taken at right angles to Fig. 7 and giving an edge view of the idler pulleys shown in the lower part of said Fig. 7;

Fig. 9, is a sectional detail of the crank shaft ratchet, etc.;

Fig. 10, is a detail view of the transmitting gear sleeve.

What may, for convenience of description, be designated as the keelson partition K, extends vertically the whole length of the scow and constitutes the means of copulation, as well asv of division, between the twin holds H, H', the latter being pivotally attached to the upper portion of said keelson partition K, and also when in normal position, detachably fastened to the lower portion thereof. Such connection between the keelson partition K, and the holds H, H', may obviously be effected by various well known mechanical eXpedients, so that I do not limit myself in this respect to the identical construction of parts shown herein by way of eXemplifcation,-the essential feature being a pivotal attachment of the holds H, I-I, to the upper portion of the keelson partition in conjunction with means for normally locking the said holds to the lower portion of said partition. As shown in the drawings this is accomplished by means of trunnion bolts t, t2, passing through the upper portions of the end walls h, I., of the holds H, H', and secured to bracket plates 7c, la', on the keelson partition K; and by bolt rods b, b, on the ends of said partition engaging with I brackets h', L, on the lower portions of the holds H, H. These bolt rods b, Z9, extend through guiding and supporting bearings c c, on the ends of the partition K, and are actuated by means of links b2, b2, connected with crank arms b3, 53, on the ends of a rock shaftt, mounted on and between bearings 7c", lax, on the upper ends of the keelson partition K, said shaft b4, being rocked when desired by means of a hand lever b5, connected` with another crank arm Zn, on the shaft b4, through the medium of the link 57, and connection rod 58,-59, being a suspender link pivotally supported at Z210, on a bracket 7:2, and pivotally connected with the aforesaid link bl, and connection rod 58, for the purpose of controlling and rendering effective the stroke of the link 57, and rod bs, and also to preserve the proper relationship of operative parts when the holds are turned into dumping position. In other words, the effective radius of the link b9, is equivalent to the distance between the pivotal center Z210, and that of the fulcrum pivot or trunnion 25, immediately below 1t, as will be seen more particularly by reference to Fig. 5, so that there can be no buckling strain on the connection rod 5S, or other parts no matter what the positions assumed.

The hand lever b5, is fulcrumed loosely on the crank shaft c, which is mounted upon and between bearing brackets h2, h2, on one end wall it, of one of the holds H. To the `outer end of this shaft c, is rigidly secured the hand crank 0, and adjacent thereto is pivotally mounted, as at itx, on a bracket 72,3, rigidly secured to the outer side of the end wall it, a seat S, for the accommodation of an operator,-said seat being rigidly attached to a sleeve s, (see Fig. 4:) fitting on the pivotal support LX, and being provided with a rpendent counterweight s, by which the seat is maintained in an upright position irrespective of the position of the hold H, or other parts.

The bottom and longitudinal side wall of each hold H, H, is formed with a water tight float compartment or compartments h4, 71,4, which, when the scow is alloat, tend constantly, by reason of the external water pressure, to quarter turn the holds H, H, upon their pivotal supports t, t, at right angles to their normal positions as indicated in Fig. 8. Thus when the lower portions of the holds H, H, are released from the keelson partition K, by the withdrawal of the lower ends of the bolt rods Z2, from the I brackets L, L, the holds H, H', automatically and bodily open up in such manner as to deprive their contents of all support, so that the loads are completely and positively discharged from the holds.

To facilitate the discharge of material the bottoms of the holds H, H, are preferably inclined or beveled inward toward the keelson partition K, so that the discharge opening is of the maximum width attainable, as will be readily understood by reference to the aforesaid Fig. 3.

After the dumping operation the holds are returned to their normal positions against the keelson partition K, by retractile mechanism of any desired or suitable character. In the drawings I show this accomplished by means of wire ropes or equivalent flexible connections o, 7', windable upon drums CZ, CZ, and having their outer extremities attached to studs h4', h4', protuberant from the lower portions of the end walls 7L, of each hold H, H. Preferably this retractile means is duplicated at each end of the keelson partition, the drums d, (l, being secured rigidly to a sleeve shaft d', mounted upon the rock shaft b4, as will be understood by reference more particularly to Figs. l, 4 and 7, by which it will be seen that additional bearings 71;, are provided on the top of the keelson partition K, for the support of both the sleeve shaft CZ', and the rock shaft 54,-- the latter extending to and beyond the bearings cx, X, at either extremity of the keelson partition K, and sufficiently beyond said bearings kx, 76X, to effect the bolt crank connections heretofore described, while the sleeve shaft cZ, is between said bearings X, 76X, and not supported thereby, being supported by t-he rock shaft and by said intermediate keelson bearings la, 715x.

The flexible connections r, r, for each drum (l, are of course secured thereto, and wind thereon or unwind therefrom in parallelism upon the same side thereof, one of the strands r, being passed over an idler roller 702, mounted in the top of the keelson partition K, immediately under each drum d, for this purpose, so that the two strands r, r, extend down one on either sidel of said keelson partition to and around idler pulleys 7c3, 7x13, mounted in the lower portion thereof, thereby reversing the direction of said strands, one of which r', is attached to the hold H, while the other r, is attached to the other hold H. rlhus it is obvious that the drums (l, (l, will either play out the flexible connections to each hold H, H, simultaneously in opposite directions as the holds rise when released from the keelson partition, as aforesaid, or will simultaneously rewind the connections r, r, and draw said holds H H', back into normal position after said dumping operation, according to the direction of rotation imparted to said drums. The drums CZ, ci, and their sleeve shaft d, being free to rotate on the withdrawal of the bolts b, b, from the eye brackets h, h', the flexible connections r, r, will automatically adapt themselves to the movements of the holds H, H, in turning upon their trunnions t,

The re-wind of the strands r, r, upon the drums CZ, (Z, is effected by means of crank, c, on the shaft c, to which the small sprocket wheel c2, is secured, said sprocket wheel c2, being connected by means of the sprocket chain c3, with a larger sprocket wheel a, rigid upon a sleeve a, (see Fig. 10) which is loosely mounted upon a xed stud t2, in axial alinement with the trunnion t, said rotatable sleeve a, having also rigidly secured to it a smaller sprocket wheel d'2, connected by a sprocket chain a3, with a larger gear cZ2,rigidly secured to the sleeve shaft CZ', upon which the drums are also rigidly mounted. By this or a similar arrc ngement of differential gearing a relatively small amount of power applied by means of the crank c, or equivalent, will be amply sufficient to draw the holds H, H', into normal position against the lreelson partition K. A. pawl p, on 'a stationary part may be arranged to act in conjunction with a ratchet wheel c", on the shaft c, to hold the said shaft against retractile movement durin the re-wind of the flexible connections r, r as indicated iny Fig. 9,-said pawl -being thrown out of engagement prior to the release "of the bolts b, b, for the automatic dumping operation.

it?, hx, are reinforcing stay rods or braces rigidly attached to the inner longitudinal side walls of the holds H, H, and pivotally connected with the keelson partition K, in axial alinement with the trunnions t, t and 7L, he, are dowel studs on the holds H, H, adapted to fit into coinciding sockets is?, kt, in the keelson partition when the holds are in normal position with relation thereto.

What I claim as my invention and desire to secure by Letters Patent is,

l. A duplex dumping scow of the character designated, comprising twin holds pivotally connected to the upper part of a common keelson partition and detachably secured to the lower part thereof, and said lreelson partition, together with means for positioning said holds against said keelson partition, for the purpose described.

2. A duplex dumping scow of the character designated, comprising twin holds formed with float compartments and pivotally connected to the upper part of a common keelson partition and detachably secured to the lower part thereof, said keelson partition, means for releasing the lower parts of said holds therefrom, and means for retracting said holds into normal position against said keelson partition, for the purpose described.

3. In a duplex dumping scow of the character designated, in combination, twin holds formed with float compartments and pivotally connected to the upper part of a common keelson partition and detachably secured to the lower part thereof, said keelson partition, a roclr shaft mounted thereon, and bolts actuated by means gf said rock shaft, for the purpose described.

4. In a duplex dumping scow of the character designated, in combination, twin holds formed with iioat compartments and pivotally connected to the upper part of a common keelson partition and detachably secured to the lower part thereof, said keelson partition, a rockv shaft mounted thereon, bolts actuated by means of said rock shaft, a sleeve shaft mounted on said rock shaft,

a drum secured to said sleeve shaft, flexible strands connecting said drum' with said holds, and means for rotating said sleeve shaft, for the purpose set forth.

5. In a duplex dumping scow of the character designated, in combination, twin holds formed with float compartments and pivotally connected to the upper part of a common leelson partition and detachably secured tothe lower part thereof, said keelson partition, a rock shaft mounted thereon,

bolts actuated by means of said rock shaft, a sleeve shaft mounted upon said rock shaft, drums secured to said sleeve shaft, iieXible strands connecting said drums with said holds, and means for rotating said sleeve shaft, for theJ purpose described.

`6. In 'a duplex dumping scow of the character designated, in combination, twin holds formed with float compartments and pivotally connected to the upper part of a common keelson partition and detachably secured tothe lower part thereof, said keelson partition, a roel; shaft mounted thereon,

rbolts actuated by said rock shaft, means for rocking said shaft manually, a sleeve shaft mounted on said rock shaft, drums secured to said sleeve shaft, iieXible strands connecting said drums with said holds, means f for rotating said sleeve shaft manually, and

a pivotally supported and counterweighted seat adjacent to said manually rocking and rotating means, for the purpose described.

8. In a duplex dumping scow of the character designated, in combination, twin holds formed with float compartments and pivotally connected to the upper part of a common leelson partition and detachably secured to the lower` part thereof, said keelson partition, .a rotatable shaft mounted thereon, a drum secured to said shaft, flexible strands connecting said drum with said holds, and means for rotating said shaft, for the purpose described.

9. In a duplex dumping scow of the character designated, in combination, twin holds formed with {ioat compartments and pivotally connected to the upper part of a common lreelson partition and detachably secured to the lower part thereof, said keelson partition, a rotatable shaft mounted thereon, drums secured'to said shaft, flexible strands connecting said drums with said holds, and means for rotating said drum shaft, for the purpose set forth.

l0. In a duplex dumping` scow of the character designated, in combination, twin holds formed with float compartments and pivotally connected to the upper part of a coinmon keelson partition and detachably secured to the lower part thereof, said keelson partition, a rotatable shaft mounted thereon, drums secured to said shaft, flexible strands connecting Said drums with said holds, and means for rotating said drum shaft manually, for the purpose Set forth.

ll. In a duplex dumping scow of the charaeter designated, in combination, twin holds formed with lioat compartments and pivotally connected to the upper part of a common keelson partition and detachably secured to the lower part thereof, said keelson partition, a rotatable shaft mounted thereon, drums secured to said shaft, lleXib-le strands connecting said drum with said holds, means for rotating ysaid drum shaft manually, and a pawl and ratchet detent arranged to prevent retractile movement during such manual rotation, for the pur pose described.

l2. In a duplex dumping scow of the charactor designated, in combination, twin holds formed with float compartments and pivotally connected to the upper part of a common lieelson partition and detachably secured to the lower part thereof, said keelson partition, a rotatable yshaft mounted thereon, drums secured to said shaft, flexible strands connecting said drum with said holds, differential gearing for effecting the rotating of said drum shaft, and means for actuating said differential gearing manually, for the purpose described.

HERMAN W. STORK. Vitnesses Guo. WM. MIATT,

DOROTHY MIATT.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents,

' Washington, D. C. 

